after measuring the mass of a slice of potato student used hair dryer to remove all moisture from the slice measure the dramas of the same slice of potato the student determined that potato’s are 40% water. how could the student replicate this experiment?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)